<template>
  <div>
    <!--  面包屑导航区域  -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域-->
    <el-card>
      <!--  搜索与添加区域  -->
      <el-row  :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--  用户列表区域  -->
      <el-table :data="userList" stripe border>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChang(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!--     修改按钮       -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!--       删除按钮     -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!--       分配角色按钮    -->
            <el-tooltip content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--      分页区域-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
      <!--   添加用户对话框   -->
      <el-dialog  :visible.sync="addDialogVisible" width="30%" title="添加用户" @close="addDialogClosed">
        <el-form :model="addForm" :rules="addFormRules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户对话框-->
      <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
        <el-form :model="editFrom" :rules="editFromRules" ref="editFromRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editFrom.username"  disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editFrom.email" ></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editFrom.mobile" ></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分配角色对话框 -->
			<el-dialog
					title="分配角色"
					:visible.sync="setRoleDialogVisible"
					width="50%" @close='setRoleDialogClosed'>
					<div>
						<p>当前的用户{{userInfo.username}}</p>
						<p>当前的角色{{userInfo.role_name}}</p>
						<p>分配新角色
							<el-select v-model="selectedRoleId" placeholder="请选择">
								<el-option
									v-for="item in rolesList"
									:key="item.id"
									:label="item.roleName"
									:value="item.id">
								</el-option>
							</el-select>
						</p>
					</div>
					<span slot="footer" class="dialog-footer">
						<el-button @click="setRoleDialogVisible = false">取 消</el-button>
						<el-button type="primary" @click="saveRoleInfo">确 定</el-button>
					</span>
			</el-dialog>
    </el-card>
  </div>
</template>

<script>
  export default {
    name: "Users",
    data(){
      //验证邮箱的规则
      var checkEmail = (rule, value, cb) => {
        // 验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

        if (regEmail.test(value)) {
          // 合法的邮箱
          return cb()
        }

        cb(new Error('请输入合法的邮箱'))
      }
      //验证手机号的规则
      const checkMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) {
          return cb()
        }
        cb(new Error('请输入合法的手机号'))
      }
      return {
        queryInfo:{
          query:"",
          pagenum:1,   //当前页数
          pagesize:2  //每页多少数据
        },
        userList:[],
        total:0,
        addDialogVisible:false,  //控制添加用户的对话框
        addForm:{       //用户表单数据
          username:'',
          password:'',
          email:'',
          mobile:'',
					userInfo:{},//需要被分配角色的用户信息
        },
        editDialogVisible:false,    //修改用户的对话框显示与隐藏
        editFrom:{},     //查询到的用户信息对象
        addFormRules:{    //表单的验证规则
          username:[
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
          ],
          password:[
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
          ],
          email:[
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
          ],
          mobile: [
            { required: true, message: '请输入手机', trigger: 'blur' },
            {validator:checkMobile,trigger: 'blur'}
          ]
        },
        editFromRules:{   //修改表单验证规则对象
          email:[
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
          ],
          mobile: [
            { required: true, message: '请输入手机', trigger: 'blur' },
            {validator:checkMobile,trigger: 'blur'}
          ]
        },
				//需要被分配角色用户信息
				userInfo:{},
				//分配角色对话框的显示与隐藏
				setRoleDialogVisible:false,
				//所有角色的数据列表
				rolesList:[],
				//已选中的角色id值
				selectedRoleId:''
      }
    },
    created() {
      this.getUserList();
    },
    methods:{
      async getUserList(){
        const {data:res} =await this.$http.get('users',{
          params:this.queryInfo
        })
        if(res.meta.status !== 200){return this.$message.error("获取用户列表失败")}
        else {
          this.userList = res.data.users
          this.total = res.data.total
        }
        //console.log(this.userList)
      },
      //监听pagesize改变的事件
      handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      //监听页码值改变的事件
      handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      //监听switch开关状态的改变
      async userStateChang(userinfo){
        console.log(userinfo)
        const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state} `)
        if(res.meta.status !== 200){
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error("更新用户状态失败")
        }
        this.$message.success("更新用户状态成功")
      },
      //监听添加用户对话框关闭事件
      addDialogClosed(){
        this.$refs.ruleForm.resetFields()
      },
      //点击按钮添加新用户
      addUser(){
        this.$refs.ruleForm.validate(async vaild => {
          if(!vaild) return
          //发起添加用户的网络请求
          const {data:res} =await this.$http.post('users',this.addForm)
          if(res.meta.status !== 201){
            this.$message.error("添加用户失败")
          }
          this.$message.success("添加用户成功")
          this.addDialogVisible = !this.addDialogVisible  //关闭添加框
          this.getUserList()    //刷新用户
        })
      },
      //展示编辑用户对话框
      async showEditDialog(id){
        const {data:res} = await this.$http.get('users/'+id,)
        if(res.meta.status !== 200 ){
          return this.$message.error("查询用户信息失败")
        }
        this.editFrom = res.data
        this.editDialogVisible = !this.editDialogVisible
      },
      //监听修改用户对话框关闭事件
      editDialogClosed(){
        this.$refs.editFromRef.resetFields()
      },
      //修改用户信息并提交
      editUserInfo(){
        this.$refs.editFromRef.validate(async valid => {
          if(!valid) return
          //发起修改用户信息的请求
          const {data:res} = await this.$http.put('users/'+this.editFrom.id,{
            email:this.editFrom.email,
            mobile:this.editFrom.mobile
          })
          if(res.meta.status !== 200){
            return this.$message.error("修改用户信息失败")
          }else{
            //关闭对话框
            this.editDialogVisible = false
            //刷新数据
            this.getUserList()
            //提示修改成功
            this.$message.success("修改用户信息成功")
          }
        })
      },
      //删除用户
      async removeUserById(id){
        //弹窗询问是否删除用户
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?',
            '提示',
            {
                      confirmButtonText: '确定',
                      cancelButtonText: '取消',
                      type: 'warning'
                    }).catch(err => err)
        console.log(confirmResult)
        //如果用户选择确定，返回的是字符串 confirm
        ///如果用户选择的是取消，返回的是 cancel
        if(confirmResult !== 'confirm'){
          this.$message.info("已取消删除")
        }else{
          const {data:res} =  await this.$http.delete('users/'+id)
          if(res.meta.status !== 200){
            this.$message.error("删除失败")
          }else{
            this.$message.success("删除成功")
            this.getUserList()
          }
        }
      },
			//展示分配角色对话框
			async setRole(userInfo){
				this.userInfo = userInfo
				//在展示对话框之前，获取所有角色的列表
				const{data:res} = await this.$http.get('roles')
				if(res.meta.status !== 200){
					return this.$message.error("获取角色列表失败")
				}else{
					this.rolesList = res.data
				}
				console.log(this.rolesList);
				this.setRoleDialogVisible= true
			},
			//点击按钮，分配角色
			async saveRoleInfo(){
				if (!this.selectedRoleId) {
					return this.$message.error('请选择要分配的角色！')
				}

				const { data: res } = await this.$http.put(
					`users/${this.userInfo.id}/role`,
					{
						rid: this.selectedRoleId
					}
				)

				if (res.meta.status !== 200) {
					return this.$message.error('更新角色失败！')
				}

				this.$message.success('更新角色成功！')
				this.getUserList()
				this.setRoleDialogVisible = false
			},
			//监听分配角色对话框关闭事件
			setRoleDialogClosed(){
				this.selectedRoleId='',
				this.userInfo={}
			}
    }
  }
</script>

<style scoped>

</style>